16.35 Progress with TSE blood testsWe are developing a blood test for TSEs using the prionspecific antibody 15B3 for the detection of diseaseassociated prion proteins in plasma and serum.Analytical sensitivity studies using vCJD and scrapiebrain homogenates suggest that the limit of detection isin the range of 10 – 100 infectious units per millilitre. Wehave analysed blood samples collected at definedintervals during preclinical and clinical scrapie andresults on the levels and kinetics of abnormal PrP duringdisease incubation time will be presented.Dr Alex J. Raeber, Director of Research, Prionics AG,Switzerland17.05 End of TSE conference